$107.76–$113.89
93970 covers a complete study of both arms or both legs; 93971 covers a unilateral or limited extremity venous study.
On this page
CMS RVU26D · Effective 2026-10-01
93970 Venous duplex scan Medicare reimbursement rates in Michigan
Complete bilateral extremity venous duplex evaluates both arms or both legs for suspected thrombosis or venous insufficiency using imaging, compression, and flow assessment. Compare 93970 office and facility rates across CMS payment localities in Michigan.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 93970 in Michigan?
Michigan has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
$170.65–$180.56
2 of 2 localities have a supported rate.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Noninvasive vascular study
About 93970: Bilateral complete extremity venous duplex scan
Complete bilateral extremity venous duplex evaluates both arms or both legs for suspected thrombosis or venous insufficiency using imaging, compression, and flow assessment.
A vascular technologist or sonographer uses grayscale imaging and Doppler to assess veins in both arms or both legs, including responses to compression and flow maneuvers. The examination may investigate leg swelling or suspected deep vein thrombosis; reflux testing may help evaluate chronic venous insufficiency before vein treatment. The record should identify the venous segments examined and findings on each side. The study is commonly performed in vascular laboratories, radiology departments, hospitals, or vein clinics and interpreted by a radiologist, vascular surgeon, or other qualified physician.
Report one unit for a complete bilateral study of an extremity pair, supported by images and an interpretation addressing both sides. Use 93971 for a single extremity or a limited examination. Modifier 26 identifies the interpretation alone, and modifier TC identifies the equipment and staff portion; billing without either modifier represents the global service. The code is already priced for both sides, so modifier 50 does not increase payment. When multiple eligible cardiovascular diagnostic tests are billed together, CMS applies its multiple procedure reduction to the technical component.
CMS billing rules for 93970
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
- Multiple procedures
- Cardiovascular diagnostic multiple procedure reduction applies to the technical component.
- Bilateral procedures
- The code is already priced as bilateral; modifier 50 does not increase payment.
Where the value comes from
- Work RVU0.68 · 12%
- Practice expense (office) RVU4.74 · 86%
- Malpractice RVU0.09 · 2%
1.4M
Medicare services in 2024 · #112 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
93970 compared with similar codes
Office rates for Michigan, from the same CMS release.
$219.88–$232.73
93925 assesses lower extremity arteries; 93970 assesses extremity veins using imaging, compression, and flow maneuvers.
$230.99–$245.46
93985 assesses arteries and veins bilaterally before hemodialysis access creation. 93970 is a complete bilateral extremity venous duplex study.
93990
No office rateDoppler flow testing
93990 evaluates an existing hemodialysis access, including its inflow and outflow; 93970 evaluates extremity veins bilaterally.
Compare 93970 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
2 of 2 payment localities
Detroit →
Office / nonfacility
$180.56
Facility
Unavailable
Rest Of Michigan →
Office / nonfacility
$170.65
Facility
Unavailable
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93970 billing questions
When should 93971 be reported instead of 93970?
Use 93971 for a unilateral extremity venous study or a limited examination. Use 93970 when both arms or both legs receive a complete venous study.
Should modifier 50 be added when both legs are scanned?
No. The code is already priced as bilateral, so modifier 50 does not increase payment.
Does scanning both legs require two units?
No. One complete bilateral study of the legs is one unit of 93970, not one unit per leg.
How is the service split between a hospital and the reading physician?
The physician who interprets the study in a facility reports 93970 with modifier 26, while the facility bills for the technical service. An office providing both portions reports the global service without either component modifier.
Is an arterial duplex on the same day separately reportable?
A separately indicated and documented bilateral lower extremity arterial duplex may be reported with 93925. When eligible cardiovascular diagnostic tests are billed together, the CMS multiple procedure reduction applies to the technical component.
What documentation supports the complete bilateral study?
The record should include images, the venous segments examined on both sides, compression and flow findings, and a signed interpretation addressing each side. Include reflux findings when reflux is assessed.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
12,32393931,,Upper extremity study,A,,0.49,3.06,,3.06,NA,0.07,3.62,3.62,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,3.32,3.32,0.07
12,32493931,26,Upper extremity study,A,,0.49,0.14,,0.14,,0.05,0.68,0.68,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,32593931,TC,Upper extremity study,A,,0.00,2.92,,2.92,NA,0.02,2.94,2.94,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,01,0,99,3.18,3.18,0.02
12,32693970,,Extremity study,A,,0.68,4.74,,4.74,NA,0.09,5.51,5.51,1,XXX,0.00,0.00,0.00,6,2,0,0,0,9,,33.4009,09,0,99,7.47,7.47,0.11
12,32793970,26,Extremity study,A,,0.68,0.22,,0.22,,0.06,0.96,0.96,1,XXX,0.00,0.00,0.00,6,2,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,32893970,TC,Extremity study,A,,0.00,4.52,,4.52,NA,0.03,4.55,4.55,1,XXX,0.00,0.00,0.00,6,2,0,0,0,9,,33.4009,01,0,99,7.25,7.25,0.05
12,32993971,,Extremity study,A,,0.44,2.99,,2.99,NA,0.05,3.48,3.48,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,3.32,3.32,0.05